/* 
Scenic Graphics Library
Copyright (C) 2007 Jouni Tulkki

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USApackage scenic;
*/

package scenic.path;

/**
 * This interface is used when walking a path. Each subpath
 * begins with a call to beginSubPath-method, which is followed with
 * calls to lineTo-method. The endSubPath-method
 * is called at the end of each subpath.
 */
public interface PathWalker {
	/**
	 * Begins a new subpath.
	 * 
	 * @param isClosed defines is the subpath closed.
	 */
	void beginSubPath(boolean isClosed);
	/**
	 * Ends the subpath.
	 */
	void endSubPath();
	/**
	 * Adds a new point to the subpath.
	 * 
	 * @param x x coordinate of the point.
	 * @param y y coordinate of the point.
	 */
	void lineTo(double x, double y);
}
